NIR Airglow Investigation of Latitudinal and Seasonal Variations of the Chemistry and Dynamics of the Mesosphere and Lower Thermosphere

中间层和低层热层的化学和动力学的纬度和季节变化的近红外气辉研究

• 批准号: 8801175
• 负责人: Patrick Espy
• 金额: $ 33.43万
• 依托单位: Utah State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-06-01 至 1993-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8801175&HistoricalAwards=false
• 关键词: NIR; Airglow; Investigation; Latitudinal; Seasonal

The atmosphere in regions above about 80km altitude is irradiated with energetic ultraviolet photons during the daytime, and by energetic electrons and positive ions during the night in the auroral zone. As a consequence, many molecules and atoms receive enough energy to cause them to emit light, not only immediately, but sometimes hours later, as molecules that have been split up into atoms or into charges ionic fragments eventually recombine. Study of this emitted light reveals much information on the composition, energy inputs, dynamics and temperature of the region. The spectrum of airglow and auroral emission extends far into the infrared, and much can be learned from measurements in that region that is not contained in the visible region. New technology has now been incorporated into instruments for that region, in the form of a Michelson Interferometer. The development of such a system is a high priority for the CEDAR program, and this award is for a joint effort by Embry Riddle Aeronautical University in conjunction with Utah State University to provide it. Observations will be made of airglow in Utah and aurora in Svalbad and the portable and user-friendly system will be available for use in many places by the aeronomy community.

在80公里以上的地区， 在白天用高能紫外线光子照射， 和高能电子和正离子在夜间， 极光带 因此，许多分子和原子 获得足够的能量使它们发光，不仅 立即，但有时几小时后，作为分子， 分裂成原子或电荷离子碎片 最终重组。 对这种发射光的研究揭示了很多 关于组成、能量输入、动力学和 该地区的温度。 气辉和极光的光谱 辐射延伸到远红外线， 从该区域的测量中， 可见区 新技术现已被纳入 该地区的乐器，以迈克尔逊的形式， 干涉仪。 这种系统的开发是一个高 CEDAR计划的优先权，这个奖项是一个联合 安柏瑞德航空大学与 与犹他州州立大学合作提供。观察结果将 由犹他州的气辉和斯瓦尔巴德的极光组成， 和用户友好的系统将可在许多地方使用 由aeronomy社区。